bugera-amps.com
User Manual
BUGERA 1990
Classic 120-Watt Hi-Gain Dual Reverb Valve Amplifier Head
Страница 1: ...bugera amps com User Manual BUGERA 1990 Classic 120 Watt Hi Gain Dual Reverb Valve Amplifier Head ...
Страница 2: ...olume control round off the BUGERA 1990 BUGERA instrument amplifiers are handmade under stringent production guidelines to ensure long life and reliability Each one includes our classic valve electronics hard wearing switches and potentiometers high quality transformers and not to forget our hand selected precision matched BUGERA valves And owing to their careful construction and component assembl...
Страница 3: ...r orsoldwith theapparatus Whenacart isused usecautionwhen movingthecart apparatus combinationtoavoid injuryfromtip over 13 Unplugthisapparatusduringlightningstormsor whenunusedforlongperiodsoftime 14 Referallservicingtoqualifiedservicepersonnel Servicingisrequiredwhentheapparatushasbeen damagedinanyway suchaspowersupplycordorplug isdamaged liquidhasbeenspilledorobjectshavefallen intotheapparatus t...
Страница 4: ...ealer and the shipping company immediately otherwise claims for damage or replacement may not be granted Always use the original box to prevent damage during storage or transport Make sure that children cannot play unsupervised with the unit or its packaging Please ensure proper disposal of all packing materials Ensure adequate air supply and to avoid overheating do not place the unit near radiato...
Страница 5: ...is is the VOLUME control that lets you adjust the volume level of the CLEAN channel 7 This REVERB rotary knob adjusts the effect level of the built in REVERB in the CLEAN channel The provided footswitch activates the REVERB effect see Chapter Footswitch 8 The PRESENCE rotary knob changes the tone of the amplifier in the upper frequencies This emphasizes the high end and makes the sound crisper 9 T...
Страница 6: ...he DIRECT output is used to route the amplifier s unfiltered preamp signal for example to a second amplifier and loudspeaker system by retaining the original sound 21 The IMPEDANCE switch lets you specify the loudspeaker impedance Always apply the value that is identical to the impedance of the used speaker cabinet Please also read Wiring the BUGERA 22 Both the paralleled LOUDSPEAKER outputs mono ...
Страница 7: ...oid damage and injury that results from fire or electric shock do not drop or spill anything into the unit s casing INSTRUCTIONS FOR QUALIFIED SERVICE PERSONNEL ONLY Remove the backside of the amplifier s casing to get to the valves and the control elements 29 These are the sockets for the ECC38 ECC38A preamp valves 30 These are the sockets for the 5881 power amp valves 31 The BIAS TEST connector ...
Страница 8: ...binet If you want to connect two speaker cabinets both cabinets should have to the same impedance Be sure to have set the IMPEDANCE switch correctly In this case set it to half the value of one of the cabinets When using two 16 Ohm cabinets the switch therefore needs to be set to 8 Ohms and with two 8 Ohm cabinets set it to the minimum impedance of 4 Ohms When you use two speaker boxes with differ...
Страница 9: ...fed to the mixer via a mic input This way you get a second guitar signal that is amplified over a PA system or can be recorded additionally or both Set up for live playing Audio connections The inputs and outputs of the BUGERA amplifier use mono jack connectors mono jack connector PA loudspeaker Power amplifier Main Out Multitrack recorder Effects processor Instrument input Microphone Electric gui...
Страница 10: ...minal output level 3 dBV Power Amplifier Section Valves Type 4 x 5881 Output Power Peak power 60 W 120 W switchable 16 8 4 Ω Loudspeaker Connectors Type 1 4 TS connectors unbalanced Load impedance 4 Ω 8 Ω 16 Ω switchable Power Supply Power Consumption Maximum 350 W Mains Voltage Fuse 100 120 V 50 60 Hz T 3 15 A H 250 V 220 230 V 50 60 Hz T 1 6 A H 250 V Mains Connector Standard IEC receptacle Dime...
Страница 11: ...ee that interference will not occur in a particular installation If this equipment does cause harmful interference to radio or television reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures Reorient or relocate the receiving antenna Increase the separation between the equipment and ...
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